Leacher bucket for coffee urns



Nov. 19, 1929, H. D. KELLY 1,736,265

LEACHER BUCKET FOR COFFEE URNS Filed Feb. 2, 1929 7 4 l W fin"; /-j.... |w a I I In; In. l-

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QL A i Patented Nov. 19, 1929 fomraiofstares ATENE nENiaY -n. "KELLY; or KAN AS; cr'zim avrrssoum mmnortnn iaucxnr noa corrnn URNS nzi'pplication:-fi1e&February 2, 13.29. Serial No. 337,031.

. -itr-has fnot been-possible toextract the full strength of the ground cofiee; andlhenceimpossible to koperate I the urn as economically :as desirable. The constructions mentioned have :also proved --inefficient because the ground-coffee :did notremain equitablydistributed in the: bucket, as the force of the boiling Waterjetted into themass 'of-ground coffee, v'vou'ld ipile the' latter up iniplaces :to such degree that a large proportion of practically pure Water would pass through the thin portions of the: mass intothe beverage. j M, :or when the bottom :ofthe'bucket wasypracticallylclean,directly into-such j ar. e In either :case, the beverage produced "would be Weak *and' oi poor quality. Another reason asground cofiee,-is;t1at thetop of a large urn raising it over and depositingit in the' urn "cover the high' part I thereof-to materially signed tor thezine ui-tabledistribution "of the ron acount er or table, approximates'the height of the average Waiter, Who almostfinvariably tiltsthe leacher bucketto a sharp angle in and thereby causes the Jgr'oundcottee, which at sueh'time is in aperfe'ctly dry'fst atefto flow or 'sl i'd'eftot'he low sid'eojf the tilted-bucket either uncover ;-part ofthe bottom'or greater depth than the low part iks a result,

upon hirning on' the boili-ngj Water, a good proportionof the latter enters the jar-T111 a substantiallypure state or as a 'very Weak -c'ofiee bevera it being clear that it either -"of the obj ectiona-ble' conditions smentiened obta ins,ithe 'tvaternseeking the course of-lea'st. "'resi'stancewvill charge theg arto therequired dep thwbefore sullicient time has elapsed for the" extractiono'fthefull strength of the ground coffee by the minor "flow of Water coming into contact with the ground coffee. Accordingly, I have provided a .leacher bucket :having a ivheel s'haped ring't'o'rest upon the perforated bottom, or on a pap'er :filter placed 7 upon the perforated bottom of g the bucket, the hub portion of the ring havfi'ng openings establishing communication between the interior of the hub and the spaces between the spokes, the latter ralso having openings to provide forthe p'assage of'boiling water circularly from one compartment :Eormedby the spokes to 'an.otl1er'ancl-from each an d all of said compartmentsto the hub chamber and vice versa,"fthe interior o' t'ftfhe hub accommodating a depending water discharge nozzle, so that Watenf'm'ayfbe discharged in, practicallj v every direction in'to difierent masses =otgroui1d codes with which the hub and Vanous'compar'tm'ents are {provideoL; :It will thus be seen, that all of the ground co'itee is subjected to "adtionfljiy'fll'e Water, softhat the run strength ofthe former maybe eitracted, andthatth'e hu'b and's'pokes guard against the uncovering, of any part of the filter in t he;evntthefleacher bucket is tilted preliminarily to, itsdep'ositin the urn.

With the objects mentioned in view thef'invention consists in certain novel'an'd useful features of construction and combinations of parts asfl hereinatter described "and claimed; and in order 'that'itinay'beful'ly understood, reterence'isto be had to the a ccompanying drawing,in' vhich': 7

, Figure 1 is a central verticalfsedtionofa leac herbucket embodying the'in've'ntion.

f FigureQ is atop plan view Withthe cover ofthe bucket omitted. V t V Referring'to the drawing in detail, l indi :CltBS a leacher bucket of'siZesL iitable for holding enough groundfcoilee to fill the jar,

'pre ferablv of cylindrical form- 'and has a foirami'nous bottom'QL The cover (3', ot the bucket-is adapted to fit' thereon With aliquidtight joint andito be clamped or otherwise rigidly secured in place astherleache'r bucket is charged with. a requisite quantity "of "notshown, of the co'flee'urn. Thebucket is 7 ground coffee. The cover is provided with a V and said tube in effect forms an extension of a pipeway 7 .through which boiling water is j forced intothe leacher bucket.

' the form of jets, within the leacher bucket, a

perforated plate 8 is secured marginally with For uniform distribution of the water in a liquid-tight joint to the cover and is spaced except at its margin from the cover so as to provide a water chamber 9 for receiving water from the tube 5 through-one or more discharge openings 10 inthe latter, and said water-jet plate, forming the bottomof chamber 9, is provided with a hollow circularrib 11, preferably V-shaped in cross section. The said rib and the body of the plate are formedwith jet orifices 12, so that water entering chamber 9 shall be jetted into the bucket over practically the entire area thereof and in different horizontal planes, the jet orifice or orifices 6 of the tube.5 cooperating in this action so that' ground coffee in the center of the leacher bucket shall be as thor oughly exposed to the action of the boiling water as that which is jetted directly from the plate, it being noted that through the any ' which the beverage is forced from the bucket into the underlying beverage jar.

. economy in the operation.

use of washer 13 and a clamping nut 14, the plate 8 can be efficiently and economically secured to and within the annular flange 15 depending from the cover to centralize it withrespect to the bucket. j I p As thus far described, the constructionis substantially the same as illustrated in other United States patents which I have secured,

and standing aloneis open to the objections hereinbefore mentioned, even where I have employed a paper filter as at 16 through The objectionsstated, briefly, are thatthe To'overcome these ob ections I have provided what maybe generally described'a's a wheel ringcomprising a hub l 7,spokes 18 and a rim 19. This wheel ring will preferablyexceed in depth the charge of coffee to be'plac'ed in the leacher bucket so that such charge shall be subdivided and practically" all 7 that is initially deposited in the separate hub andspoke chambers, remain in such chambers'du'ring the coffeemaking operation regardless of the action of the jets of boiling water and regardless of whether the level of the bucket is maintained in placing it in pos1-. tion on the urn. It is desirable however thatthe water discharged into any compartment may circulate throughoutany or all of the compartments, and for this reason the hub and the spokes are respectively provided with notches or passages 20 and 21'. Certain of the notches or openings 21 of the spokes are of substantial size so that the V-shaped portion'of the jet plate may depend to a plane approximating that of the bottom of the notches-or openings in order that water discharged from the lower end of theannular portion 11 of plate 8, may penetrate the mass of ground coffee almost to the level of the filter sheet. The disturbance of the ground coffee will be localized largely with in the respective chambers by the water and of course some of the ground coffee may circulate through some of the notches or openings.

As a result of this arrangement it has been found that from a given quantity of ground coffee practically the full strength can be ex.-

tracted in a very short period, thereby eliminating lossof coffee as well as of time and,

producing a beverage rich in quality.

After each coffee making operation the leacher bucket will be removed and after the cap is taken off, the contents of the bucket will be dumped out. A new filter sheet will be placed in position andthe wheel partition placed thereon. The bucket is then readyto be recharged with coffee for the next beverage producing operat1on.-

parent that I have produced a leacher bucket for. coffee urns which embodies the features of advantage set forth in the statement of the ob ects of the invention, and which is susceptlble ofmodification in certain particulars within the spiritand scope of the appended claims. r V

boiling water to the bucket, and means proj ectingupward from the bottom of thebucket and'providing the latter with a plurality of From the above description, it will be apchambers for holding ground coffee and j maintaining: it at a substantially uniform depth over the entire surface of the bottom of'the bucket.

2. A leacher bucket havinggga removable partition restingwithin and on the bottom of .the bucket and dividing the lowerpart of the bucket into a plurality of compartments, the partition having notchesin its upper edge establishing communication fbetween the compartments. i i

3. A leacheribucketprovided with a ,fosf

,raminous bottom, a removable partition within and resting on the bottom of the bucket and dividing the lower part of thelat gter into a plurality ofground-coffee com partments, the partition having notches in its. upper edge, andacover: fOI thQ. bucket m V r provided with means for discharging jets of boiling water into the compartments.

4. A leacher bucket provided with a f0- raminous bottom, a removable partition Within and resting on the bottom of the bucket and dividing the lower part of the latter into a plurality of ground-coffee compartments, the partition having notches in its upper edge; a cover for the bucket, a perforated jet plate secured to and within the cover and provided with a hollow annular rib depending into notches of the partition,

a tube secured in the cover and provided with a jet orifice for discharging into one of the compartments of the partition and with perforations to supply water to the upper side of the jet plate, and means for conducting boiling water to said tube.

5. A. leacher bucket provided with a 0- raminous bottom, a paper filter resting on the bottom, a wheel-shaped partition resting on said filter and provided with a central chamber and surrounding chambers, and with notches establishing communication between all of the chambers in a plane above the bottom thereof, a perforated jet plate secured to the under side of the cover and provided with a hollow annular rib depending into certain notches of the partition, and a pipeway for supplying water to the interior of the cover above the jet plate and also provided with 'et orifices for discharging into the central c iamber of the partition.

In testimony whereof I aflix my signature.

HENRY D. KELLY. 

